Sprint is getting some significant updates to its smartphone lineup today: two high-end phones from LG and two mid-range phones from Samsung, in a variety of sizes from petite to freakin' huge, man. The Nexus 5 and G2 from LG, as well as the Galaxy S4 Mini and Galaxy Mega (6.3) from Samsung, are all available on the online store now. They should be in most retail stores soon (with a possible exception in the midwest and southeast), though the Nexus 5 will probably be scarce as usual.

The Galaxy S4 Zoom is what you get if you hold a Galaxy S4 in one hand, a digital camera in the other, and slam them together. Samsung unveiled the device early in the summer, and while it didn't take long to arrive in other areas of the world, it's only just now coming to the US. Come November 8th, AT&T will become the first camera to offer the Galaxy S4 Zoom on this side of the pond.

After speaking with no less than five different sources with knowledge of the matter, I am ready to confirm that the LG-made Nexus 5 should be unveiled later on today, along with Android 4.4 KitKat, additional details of which were leaked last night by former WSJ reporter Amir Efrati.

Last month Amazon announced MatchBook, a new service that gives customers the option to get discounted Kindle versions of physical books they've already bought. It launched today with support for over 70,000 titles, seven times what the company promised would be available from the get go. Discounted books range from free to $2.99.

Eligible books date back to 1995, the year when Amazon first launched its online bookstore. Just remember that only purchases tied to your current account will apply, so while many of us didn't have email address way back when, those that did probably haven't held on to them.

One of the perks of the many Humble Bundles is that they bring games to platforms they didn't exist for previously. Linux gamers know what I'm talking about, as their operating system of choice has been relatively flooded with games since the original Humble Indie Bundle first brought Aquaria, Gish, Penumbra, and other titles to the platform. Android isn't nearly as desperate for quality games, but Time Surfer entered the Play Store a few weeks ago following its Humble Mobile Bundle debut, and now Star Command has done the same.

LG's latest flagship device is now available on Verizon Wireless, the first carrier to offer the 5.2-inch handset in-stores. Verizon customers can pick up one by handing over $199.99 with a two-year contract or paying $599 to get the phone contract-free.

Update: If you enter the promo code RMN30 at checkout, it will take $30% off the upfront cost, which amounts to $60. This should bring the price down to $139.99 before taxes.

AT&T just launched a large amount of phones all at once, but none are so large as Samsung's Galaxy Mega 6.3. This relatively low-priced alternative to the Galaxy Note and Optimus G Pro is the largest phone in AT&T's lineup, and at the moment, also the largest carrier phone anywhere in America. The device is available now at $149.99 on-contract or $479.99 unsubsidized.

The Mega 6.3 naturally has a 6.3-inch display, but it's an LCD panel instead of Samsung's usual AMOLED, and the resolution is a mere 1280x720.

Aviate Launcher, if you haven't heard of it, is a new home screen replacement that looks to offer you information right when you need it and which is, at the time of writing, in the middle of an invite-only alpha period.

After receiving my invitation recently, I was anxious to take the launcher for a spin. I have no doubt it will improve as it progresses toward a broad launch, and there are a few drawbacks, but it is already one of the best alpha products I've ever used.

We revealed the full details of the HTC One Mini yesterday, but now the Taiwanese company has made the smaller phone's official debut. The One Mini is a 4.3-inch counterpart to the larger One, alike in design if not specifications: the general look and shape of the flagship is preserved, along with all the software features, plus the Ultrapixel rear camera and "BoomSound" front-facing stereo speakers. HTC plans a worldwide rollout of the One Mini starting in August and continuing into September, with no prices available yet.

If you habitually rock climb, scuba dive, ski cross-country, or do any of the things you might regularly see on a heath food or Viagra commercial, you're probably in the market for a ruggedized smartphone. And if you're on Verizon, your options have been somewhat limited as of late (try not to drool over AT&T's shiny new Galaxy S4 Active, please). Verizon just made the Casio G'zOne Commando LTE official: it's a super-sturdy Android device in the same vein as the former Commando and the G-Shock watch line.